3 #ifndef __CDS_CONTAINER_STRIPED_SET_STD_SET_ADAPTER_H
4 #define __CDS_CONTAINER_STRIPED_SET_STD_SET_ADAPTER_H
6 #include <cds/container/striped_set/adapter.h>
10 namespace cds { namespace container {
11 namespace striped_set {
13 // Copy policy for std::set
14 template <typename T, typename Traits, typename Alloc>
15 struct copy_item_policy< std::set< T, Traits, Alloc > >
17 typedef std::set< T, Traits, Alloc > set_type;
18 typedef typename set_type::iterator iterator;
20 void operator()( set_type& set, iterator itWhat )
22 set.insert( *itWhat );
26 template <typename T, typename Traits, typename Alloc>
27 struct swap_item_policy< std::set< T, Traits, Alloc > >: public copy_item_policy< std::set< T, Traits, Alloc > >
30 // Move policy for std::set
31 template <typename T, typename Traits, typename Alloc>
32 struct move_item_policy< std::set< T, Traits, Alloc > >
34 typedef std::set< T, Traits, Alloc > set_type;
35 typedef typename set_type::iterator iterator;
37 void operator()( set_type& set, iterator itWhat )
39 set.insert( std::move( *itWhat ) );
42 } // namespace striped_set
43 }} // namespace cds::container
45 namespace cds { namespace intrusive { namespace striped_set {
47 /// std::set adapter for hash set bucket
48 template <typename T, class Traits, class Alloc, CDS_SPEC_OPTIONS>
49 class adapt< std::set<T, Traits, Alloc>, CDS_OPTIONS >
52 typedef std::set<T, Traits, Alloc> container_type ; ///< underlying container type
55 /// Adapted container type
56 class adapted_container: public cds::container::striped_set::adapted_container
59 typedef typename container_type::value_type value_type ; ///< value type stored in the container
60 typedef typename container_type::iterator iterator ; ///< container iterator
61 typedef typename container_type::const_iterator const_iterator ; ///< container const iterator
63 static bool const has_find_with = false;
64 static bool const has_erase_with = false;
68 typedef typename cds::opt::select<
69 typename cds::opt::value<
70 typename cds::opt::find_option<
71 cds::opt::copy_policy< cds::container::striped_set::move_item >
75 , cds::container::striped_set::copy_item, cds::container::striped_set::copy_item_policy<container_type>
76 , cds::container::striped_set::swap_item, cds::container::striped_set::swap_item_policy<container_type>
77 , cds::container::striped_set::move_item, cds::container::striped_set::move_item_policy<container_type>
88 template <typename Q, typename Func>
89 bool insert( const Q& val, Func f )
91 std::pair<iterator, bool> res = m_Set.insert( value_type(val) );
93 ::cds::unref(f)( const_cast<value_type&>(*res.first) );
97 # ifdef CDS_EMPLACE_SUPPORT
98 template <typename... Args>
99 bool emplace( Args&&... args )
101 # if CDS_COMPILER == CDS_COMPILER_GCC && CDS_COMPILER_VERSION < 40800 || CDS_COMPILER == CDS_COMPILER_CLANG && !defined(__LIBCPP_VERSION)
102 // GCC < 4.8: std::set has no "emplace" member function. Emulate it
103 std::pair<iterator, bool> res = m_Set.insert( value_type( std::forward<Args>(args)...));
105 std::pair<iterator, bool> res = m_Set.emplace( std::forward<Args>(args)... );
111 template <typename Q, typename Func>
112 std::pair<bool, bool> ensure( const Q& val, Func func )
114 std::pair<iterator, bool> res = m_Set.insert( value_type(val) );
115 ::cds::unref(func)( res.second, const_cast<value_type&>(*res.first), val );
116 return std::make_pair( true, res.second );
119 template <typename Q, typename Func>
120 bool erase( const Q& key, Func f )
122 iterator it = m_Set.find( value_type(key) );
123 if ( it == m_Set.end() )
125 ::cds::unref(f)( const_cast<value_type&>(*it) );
130 template <typename Q, typename Func>
131 bool find( Q& val, Func f )
133 iterator it = m_Set.find( value_type(val) );
134 if ( it == m_Set.end() )
136 ::cds::unref(f)( const_cast<value_type&>(*it), val );
145 iterator begin() { return m_Set.begin(); }
146 const_iterator begin() const { return m_Set.begin(); }
147 iterator end() { return m_Set.end(); }
148 const_iterator end() const { return m_Set.end(); }
150 void move_item( adapted_container& /*from*/, iterator itWhat )
152 assert( m_Set.find( *itWhat ) == m_Set.end() );
153 copy_item()( m_Set, itWhat );
163 typedef adapted_container type ; ///< Result of \p adapt metafunction
166 }}} // namespace cds::intrusive::striped_set
171 #endif // #ifndef __CDS_CONTAINER_STRIPED_SET_STD_SET_ADAPTER_H